Section 4 • Repair Procedures
REV A
September 2016
Part No. 227123 GRC 4 - 19
4 Turn the key switch to platform control and pull
out the red Emergency Stop button to the on
position at both the ground and platform
controls.
5 Activate the function enable switch and press
and hold the steer thumb rocker switch to the
right. Allow the wheels to completely turn to the
right. Continue holding the switch while
observing the pressure reading on the pressure
gauge. Note the pressure. Refer to Section 2,
Specifications
.
6 Press and hold the steer thumb rocker switch to
the left. Allow the wheels to completely turn to
the left. Continue holding the switch while
observing the pressure reading on the pressure
gauge.
7 Turn the machine off. Hold the steer relief valve
with a wrench and remove the cap (schematic
item G).
8 Adjust the internal hex socket. Turn it clockwise
to increase the pressure or counterclockwise to
decrease the pressure.
Component damage hazard. Do
not adjust the relief valve
pressures higher than
specifications.
9 Install the relief valve cap.
10 Repeat steps 5 through 6 to confirm the relief
valve pressure.
FUNCTION MANIFOLD
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